Goodbye April.... Topics for April 27th

Algebra I

Today we discussed
Our discussion has moved into roots and radicals.  We discussed what a square root is and reviewed all our perfect squares from 1 to 144.

Sections Covered in Textbook
1) 12-2: Square Roots (pages 477-481)

Video Tutorials
1) Finding the square root of a perfect square
http://www.virtualnerd.com/sat-math/fundamentals/exponents-square-roots/perfect-square-square-root
2) How to find the square root of a fraction
http://www.virtualnerd.com/algebra-1/algebra-foundations/powers-square-roots/square-roots/fraction-square-root

Assignments
1) Chapter Test on Page 471 #'s 1-16 all
2) Page 480 #'s 27-53 odd.

**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK

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Pre-Algebra

Today we discussed
We took our discussion of proportions and included the special proportion for percents.  Remember per-cent means per-100 or out of 100.   You are comparing a percentage of a base number with 100.

Sections Covered in Textbook
1) 9-4: Using the Percent Proportion

Video Tutorials
1) What is a percent proportion?
http://www.virtualnerd.com/middle-math/ratios-proportions-percent/percent-number/percent-proportion-definition
2) Using the percent proportion to find a part of a whole.
http://www.virtualnerd.com/middle-math/ratios-proportions-percent/percent-number/proportion-for-part-of-whole

Assignments
1) Chapter 8 Test.
Download Test Here.
2) Set 9C on Page 608 #'s 1-10 all

**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK

Topics for April 25th

Algebra I

Today we discussed
We finished our discussion about solving systems of equations and tackled some more complicated equations with rational numbers.  From there we graphed systems of inequalities to determine the solution - as with all inequalities, there are many possible solutions so the key is to find where the two graphs intersect.

Sections Covered in Textbook
1) 11-5: Elimination Using Multiplication (pages 457-461)
2) 11-5: Graphing Systems of Inequalities (pages 463-467)

Video Tutorials
1) How to Solve Systems of Equations by Graphing

• http://www.virtualnerd.com/algebra-1/systems-equations-inequalities/inequalities/solving-systems-inequalities/inequality-solve-by-graphing
• https://www.khanacademy.org/math/algebra/two-variable-linear-inequalities/graphing-inequalities/v/graphing-systems-of-inequalities-2

Assignments
1) Page 460 #'s 22, 24, 31
2) Page 465 #'s 13-33 2nd Column only


**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK

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Pre-Algebra

Today we discussed
We have finished our unit on graphing and now have moved into ratios, proportions and percents.  We defined a ratio as a comparison of two numbers by division.  Ratios can be expressed in three ways:

2 is to 3       or       2:3      or 2/3

A rate is defined as a ratio that compares two numbers with different measures like mile/hour.

Proportions can be formed by setting two ratios (fractions) equal to each other.  If we have a missing number, we can solve by multiplying the means and extremes and solving for the variable (missing value).

Sections Covered in Textbook
1) 9-1: Ratios and Rates (pages 324-325)
2) 9-2: Proportions (pages 327-329)

Video Tutorials
1) How to solve a proportion.
http://www.virtualnerd.com/pre-algebra/ratios-proportions/proportionality/solving-proportions/proportion-cross-multiply-example

Assignments
1) Look over chapter 8 to see if you have any questions (skip section on systems of equations)
2) Page 329 #'s 26-37 all

**PLEASE CHECK ODD ANSWER IN BACK OF TEXTBOOK